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- To move to and fro over; cross and recross. 迅速的來(lái)回或上下移動(dòng)。
- He continued to move to and fro over the soft carpet. 他繼續在柔軟的地毯上來(lái)回走動(dòng)。
- To hang loosely and swing or sway to and fro. 懸蕩，垂著(zhù)擺動(dòng)松散地懸掛著(zhù)而且來(lái)回擺蕩或前后搖擺
- She was moving to and fro about her work, alert, joyous and robust. 她跑來(lái)跑去地干活，手腳輕健，興高采烈，身強體
- The girl's pigtails swing to and fro as she runs. 小女孩一跑, 辮子就來(lái)回甩動(dòng)。
- Trucks shuttled to and fro on the high ways. 車(chē)輛在高速公路上穿梭行駛。
- He is walking to and fro in the room. 他在房間內踱來(lái)踱去。
- The ship was rolling heavily to and fro. 那船晃來(lái)晃去很不平穩。
- It is a disc or collar with an irregularly shaped edge, which operates in contact with a rod or lever, and causes it to oscillate, or to move to and fro. 它是一個(gè)不規則形的圓碟或圓環(huán)，和一個(gè)桿或棒連接運作，使它上下或往來(lái)擺動(dòng)。
- She swung to and fro on the swing. 她在秋千上擺來(lái)擺去。
- Now he felt weightless again and with an ever-so-slight motion of the tail he could move to and fro, up and down, as before. 現在，他重新感覺(jué)到身體輕飄飄的，尾巴稍稍一擺，他就能在水里游來(lái)游去，游上游下，和從前一樣。
- The signals go to and fro at a very high but almost constant speed. 那些信號用非?？斓珟缀醪蛔兊乃俣葋?lái)回傳送。
- Polybag sealer : No water need.Place the head and move to and fro on both side of the part where would like to be sealed. 膠袋封囗機： 不用加水，將清洗頭在需密封的部位上、下兩邊來(lái)回輕壓，大部份膠料也合用。
- The cat made little rushes to and fro after the ball. 貓追著(zhù)球跑過(guò)來(lái)跑過(guò)去。
- A few clouds of dust moving to and fro signify that the army is encamping. 少而往來(lái)者，營(yíng)軍也；
- The tall chimney tottered (to and fro) and then collapsed. 那座高煙囪搖搖晃晃地倒了下來(lái)。
- Moving to and fro. 來(lái)來(lái)回回的移動(dòng)
- Buses go to and fro between the center of the city and the city limits. 公共汽車(chē)往返行駛于市中心和城市邊緣之間。
- Cam: A device for converting circular or rotary motion into reciprocating motion. It is a disc or collar with an irregularly shaped edge, which operates in contact with a rod or lever, and causes it to oscillate, or to move to and fro. 凸輪:把旋轉動(dòng)力轉為往復力的機件。它是一個(gè)不規則形的圓碟或圓環(huán)，和一個(gè)桿或棒連接運作，使它上下或往來(lái)擺動(dòng)。
- Those boats are prepared for waftage to and fro. 那些船舶是準備用來(lái)來(lái)回運送貨物的。
